Cardiovascular system

A. Systolic ejection
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. None of the above

A. Heart rate
B. Peripheral resistance
C. Systolic blood pressure
D. Venous return

A. 30 ml
B. 130 ml
C. 70 ml
D. 5 liters

A. The bundle of His
B. All cardiac muscle
C. The sinoatrial node
D. The cervical ganglion

A. Closure of the aortic and pulmonary valves
B. Opening of the aortic and pulmonary valves
C. Closure of the mitral and tricuspid valves
D. Opening of the mitral and tricuspid valves